Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N359DN - Airbus A321 211SL - Delta Air Lines DAL2172/DL2172 (DTW-SAN-DTW) - 4.2 mi away @ 35000 ft, heading ENE at 604 mph. Spotted 3x before! [08:32:16 PM CST] #A40694 #N359DN #A321 #DELTA #DAL2172 #DL2172 #ADSB #ADSBbot

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N395DZ - Airbus A321 211SL - Delta Air Lines DAL2172/DL2172 (DTW-SAN-DTW) - 4.4 mi away @ 36050 ft, heading WSW at 496 mph. Spotted 6x before! [01:15:31 PM CDT] #A495BF #N395DZ #A321 #DELTA #DAL2172 #DL2172 #ADSB #ADSBbot